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Miloslav Ciz 2024-08-31 14:44:45 +02:00
parent 124b9d1e7c
commit 3f374a4713
85 changed files with 2281 additions and 2272 deletions
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8
bilinear.md
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@ -5,8 +5,8 @@ Bilinear interpolation (also bilinear filtering) is a simple way of creating a s
Why is it named *bilinear*? Probably because it's doing linear interpolation twice: once in *X* direction, then in *Y* direction.
```
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####OOOOVVVVaaaaxxxxssssffffllllcccc////!!!!;;;;,,,,....----
####OOOOVVVVaaaaxxxxxssssffffllllcccc////!!!!;;;;,,,,.....----
####OOOOVVVVaaaaaxxxxssssfffflllllcccc////!!!!!;;;;,,,,....-----
###OOOOOVVVVaaaaaxxxxsssssfffflllllcccc////!!!!!;;;;,,,,,....---
###OOOOVVVVVaaaaaxxxxsssssfffffllllccccc/////!!!!!;;;;,,,,,.....
@ -74,7 +74,7 @@ int interpolateBilinear(int topLeft, int topRight, int bottomLeft, int bottomRig
int x, int y)
{
#define FPP 16 // we'll use fixed point to prevent rounding errors
#if 1 // switch between the two versions, should give same results:
// horizontal first, then vertical
int a = interpolateLinear(topLeft * FPP,topRight * FPP,x);
@ -97,7 +97,7 @@ int main(void)
putchar('\n');
}
return 0;
}
```